On Thursday the 2nd of December, the roof was once again the subject of investigation. This time it was by Ian Tyers, the

denrochronologist (tree ring dating expert) who proceeded to bore several holes right through selected roof timbers, extracting the cores to investigate for dating purposes. As with the thatch, the process starts with careful notes, this time of the location of the proposed holes. A marker is put in place and the hole drilled. Then the core is extracted from the drill and carefully marked, noted and put safely away.

The final act is to fill and re-colour the hole to leave the site looking undisturbed.